Solar Powered Mobile Phone Battery Charger

This is the schematic diagram of solar powered mobile phone battery charger. The circuit is designed to charge the battery from a source with a lower voltage. Do not use it to charge the battery with the same or lower voltage than the voltage which is generated by the solar panel. For proper operation of the circuit necessarily requires the battery. Various models of mobile phones have different requirements to the charge, and this circuit might not work well with all phone types.